It was a nervous few minutes early on a Saturday morning as I eased the transfer lever back a notch. The yellow indicator lamp saying ‘part time’ lit up on the dash, but had four-wheel drive actually engaged? I eased the gear lever into reverse, felt it clonk into gear, and the car eased gently backwards. No graunching, clicking, rattling or screeching sounds, just a gentle creep backwards. Then I selected Drive and eased the Cherokee back up the driveway. Then the lever went back another notch; no sign on the dash of a green ‘full time’ indication, but the Jeep drove backwards and forwards again without hesitation. I then yanked the stick all the way back to low range. The ‘part time’ lamp lit up again, and as I eased the Jeep up and down the drive again it did, at least, seem to be in low range.